US461494A - Barber s chair - Google Patents

Barber s chair Download PDF

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Publication number
US461494A
US461494A US461494DA US461494A US 461494 A US461494 A US 461494A US 461494D A US461494D A US 461494DA US 461494 A US461494 A US 461494A
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Prior art keywords
chair
pivoted
lever
barber
rack
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B60N2/235—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms
    • B60N2/2352—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms with external pawls
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/1067—Arrangements for adjusting the seat adjusting the backrest relative to the seat portion

Definitions

  • This invention has relation to barber's chairs; and its object is to increase the efficiency and simplify the construction of the means for tilting the back thereof. This object is accomplished by the mechanism illustrated in the accompanying drawings, in which.
  • Figure 1 is a sectional side elevation of my improved chair; Fig. 2, a front elevation of the toothed rack; and Fig. 8 is a side view of the operating mechanism detached.
  • 1 represents the frame, mounted on legs, for supporting the seat 1*, which frame and seat are rigid, and 2 the back of the chair, which is pivoted at its lower end to said frame 1 at the rear of said seat 1*.
  • a downwardly-extending bar 3 Securely attached to said back 2, above the pivoted end thereof, is a downwardly-extending bar 3, the lower end of which is pivoted to the upper end of a connecting-bar 4, which itself is pivoted at its lower end to a horizontal lever 5.
  • 'lhislever 5 is pivoted at its forward extremity to the forward extremity of the chair and extends thence rearwardly to and beyond the rear side of said chair, where it is bent downward and outward to form a treadle 7.
  • a rack 8 Arranged in a vertical position between the two rear cross-braces of the chair is a rack 8,
  • the combination with a barbers chairhaving a rigid seat-supporting portion supported on legs, and a back pivoted to said seatsupporting portion,of the hereimdescribed means for adjusting the position of said back and holding it in its adjusted position, comprising a bar 3, attached to said pivoted back at its upper end, a connecting-rod 4, to which the lower extremity of said bar is pivoted, a lever 5, to which the lower end of said rod 4 is pivoted, said lever being pivoted at its forward end to the forward portion of the chair and extending thence horizontally rearward to the rear side of the chair and bent at its rear end downward and rearward to form a foottreadle, and a vertical rack located beneath the plane of the seat contiguous to said lever and adapted to be engaged thereby, all suhstantially as shown and described.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Description

(No Model.) I
A. D. CREE. BARBER'S GHAIRL No. 461,494. Patented 004. 20, 1891.
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UNITED STATES PATENT OFFICE.
ALEXANDER D. CREE, OF \VAYNESBURG, PENNSYLVANIA.
BARBERS CHAIR.
SPECIFICATION forming part Of Letters Patent No. 461,494, dated October 20, 1891.
Application filed February 24, 1891 Serial No. 382,662- (No model.) I
This invention has relation to barber's chairs; and its object is to increase the efficiency and simplify the construction of the means for tilting the back thereof. This object is accomplished by the mechanism illustrated in the accompanying drawings, in which.
Figure 1 is a sectional side elevation of my improved chair; Fig. 2, a front elevation of the toothed rack; and Fig. 8 is a side view of the operating mechanism detached.
In the drawings, 1 represents the frame, mounted on legs, for supporting the seat 1*, which frame and seat are rigid, and 2 the back of the chair, which is pivoted at its lower end to said frame 1 at the rear of said seat 1*. Securely attached to said back 2, above the pivoted end thereof, is a downwardly-extending bar 3, the lower end of which is pivoted to the upper end of a connecting-bar 4, which itself is pivoted at its lower end to a horizontal lever 5. 'lhislever 5 is pivoted at its forward extremity to the forward extremity of the chair and extends thence rearwardly to and beyond the rear side of said chair, where it is bent downward and outward to form a treadle 7.
Arranged in a vertical position between the two rear cross-braces of the chair is a rack 8,
which serves to hold the lever 5, and consequently the back, in any desired position.
In operation itis only necessary in order to tilt the back to disengage the lever from the rack and raise said lever until the back has been tilted to the desired angle and then en gage the lever with the rack, which will hold it and the back in their adjusted positions, it being of course understood that there is sufficient play of thelever 5 and bar 4 on their pivots to allow the slight movement of the former necessary to release it from the rack.
Having now described my invention, what I believe to be new, and desire to secure by Letters Patent, is
The combination, with a barbers chairhaving a rigid seat-supporting portion supported on legs, and a back pivoted to said seatsupporting portion,of the hereimdescribed means for adjusting the position of said back and holding it in its adjusted position, comprising a bar 3, attached to said pivoted back at its upper end, a connecting-rod 4, to which the lower extremity of said bar is pivoted, a lever 5, to which the lower end of said rod 4 is pivoted, said lever being pivoted at its forward end to the forward portion of the chair and extending thence horizontally rearward to the rear side of the chair and bent at its rear end downward and rearward to form a foottreadle, and a vertical rack located beneath the plane of the seat contiguous to said lever and adapted to be engaged thereby, all suhstantially as shown and described.
In testimony that I claim the foregoing I hereunto affix my signature this 9th day of January, A. D. 1891.
ALEXANDER D. CREE.
US461494D Barber s chair Expired - Lifetime US461494A (en)

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